Inking mechanism



March 6, 1934. w, M KELLY 1,949,937

IN/KING MECHANISM Filed Dec. 5, 1930 3 Sheets-Sheet 1 March 6, 1934. w. M. KELLY 1,9495937 INKING MECHANISM Filed Dec. 5, 1930 3 Sheets-Sheet 2 March 6, 1934. w, M KELLY 1,949,937

INKING MECHANISM Patented Mar. 6, 1934 UNITED STATES ATENT FFICE INKING MECHANISM William M. Kelly, Westfield, N. J.

Application December 5, 1930, Serial No. 500,372`

4 Claims.

This invention relates to inking mechanisms for printing presses, and more particularly to auxiliary ink distributing devices adapted to be applied to a press of the general type shown in my i Patents Nos. 1,339,841, 1,452,466, in which there is employed a horizontal reciprocating bed and a rotating impression cylinder.

The present application is a continuation in part of my copending application Ser. No. 374,794.

This invention has for its general object the provision of novel auxiliary mechanisms adapted to operate upon the opposite side of the impression cylinder from the usual permanently installed inking devices of the press, and of improved means i`or driving, adjusting, and permitting removal of the vibrator, rider, and form rolls of such auxiliary mechanism.

The purpose of the auxiliary inking mechanism is to ink portions of the form, notably the tail end thereof, which are not completely inked by the usual form rolls located behind the impression cylinder. However, in accomplishing this purpose, the auxiliary form roll, being located in a xed position in front of the impression cylinder, does not operate upon the entire head end of the form and, due to the reversal of movement of the bed while the auxiliary form roll is in contact with the form, a portion of the head of the form will be streaked at this point of reversal. Although the effect of this reversal of the bed while the auxiliary form roll is in contact with the form may not show on the printed matter if it occurs upon a typed portion, it does manifest itself very plainly as an unsightly disfiguration whenever this reversal takes place at the instant the form roll is passing over a solid' or half tone cut or the like. It is therefore a further object of this invention to provide a means for preventing this streaking of the form, such means being adapted to remove the form roll from Contact with the form before reversal thereof and preferably at a point where it is passing over a margin or other portion of the form which will not be affected by the cessation or resumption of Contact, and thus to permit reversal of the bed while the auxiliary form roll is held out or" contact with the form.

Other objects and features of novelty will be apparent from the following specification taken in connection with the accompanying drawings in which one embodiment of the invention is shown by way of example.

In the drawings:

Figure 1 is a View in side elevation of a portion of a printing press illustrating the installation of one embodiment of my novel auxiliary inking mechanism;

Figure 2 is a vertical cross-sectional view taken on line 2-2 of Figure l;

Figure 3 is a top plan view of a portion of the 60, auxiliary inking mechanism as installed at one side of the press;

Figure 4 is a cross-sectional view taken on line 4 4 of Figure 3;

Figure 5 is a cross-sectional View taken on line 6 5-5 of Figure 4;

Figure 6 is a perspective view of a portion of the bed of a press and its associated parts, illustrating another embodiment of my invention;

Figure 7 is a view similar to Figure 1 showing 70, a further embodiment of the auxiliary inking mechanism as applied to a printing press of a different construction;

Figure 8 is a fragmentary cross-sectional view taken on line 8 8 of Figure 7;

Figure 9 is a fragmentary cross-sectional view taken on line 9-9 of Figure 7;

Figure 10 is a fragmentary horizontal sectional View taken on line 10-10 of Figure 8; and

Figure 11 is a horizontal sectional view taken 8 on line 11-11 of Figure 2.

Those portions of the press proper which are illustrated in the drawings are fully shown and described in my patents already mentioned, and the parts thereof which do not form the subject matter of the present invention will not be described in detail.

The frame of a press is designated generally by the numeral 10 and is provided with side bars or rails 1l which serve to support the side frames 90 or housings 12 which are adapted to enclose an impression cylinder 13. A portion of the sheet delivery mechanism is indicated at 14.

The horizontally reciprocating bed of the press is shown at 15 and is adapted to carry a form such 95; as is illustrated at 16 in Figure 6. The bed 15 is provided with tracks 17 which are adapted to reciprocate in contact with the rollers 18. It will be understood that these rollers 18 are adapted to roll upon stationary tracks (not shown) carried by the frame of the press.

Conventional bed side bearers are shown at 19 and have secured thereto by means of the fastening elements 22 the supplemental bearer mem- 105 bers 20 provided with the upper wedge or cam surfaces 21, the purpose of which will hereinafter be described. If desired, the bearer or cam members 2O may be made Vadjustable longitudinally of the bed of the press, as for example by the provision of the slots shown in Figure 6, later to be described. Y

One side margin of the bed 15 is provided with the rack 25 with which is adapted to mesh the pinion 26. The pinion 27 which in turn meshes with pinion 26 is the hrst of a series of driving gears which are adapted to actuate the usual inking mechanism provided on the rightliand side oi the impression cylinder, and corresponding respectively to pinions 435 and 436 described in my Patent No. 1,336,841 to which reference has already been made.

Secured to the inner face of the end housing member 12 oi the impression cylinder as by means of the screws 31 and dowel pin 32, is the plate 30. Bearings 33, 34, 35 and 38 are provided in this plate for the reception of the studs or axles 37, 38, 39 and 40 which are respectively adapted to carry the gears 41, 42, 43 and 44. These gears form a gear train which transmits the oscillatory motion from gear 26 to the vibrator roll of the auxiliary inking mechanism, In order to obviate any possibility of overloading the common gear 26, the arrangement illustrated may be modied, if desired, to eliminate gear 4l and to shift the bearing points of gears 44, 43, and 42 slightly so that gear 42 may mesh directly with the rack 25, which may be lengthened ii neces- Saly.

The auxiliary inking device as illustrated in Figures 1-5, inclusive, of the drawings comprises essentially the form roll 59, carried by the axle 51, and the vibrator roll 52, carried by the axle 53. One end of the axle 53 is mounted in a bearing 55 formed upon an extension arm 56 of the side bracket 57, and the other end thereof is provided with a threaded portion 58 adapted to be controlled by the reversing nut mechanism 59 which is carriedby a similar side bracket 57 mounted upon the lefthand side of the press as seen in Figure 2. As clearly shown in Figure il of the drawings, this reversing or vibrating nut 59 is secured against rotation in the bearing 8O by means of the bolts 68. A gear 61 is mounted near the other end of the axle 53 and is adapted to mesh with the last gear 44 of the train of gears which are driven by the rack 25 through the pinion 26 upon oscillation of the bed of the press. It will be readily seen that upon oscillatory rotation of the axle 53, the vibrating mechanism just described will cause endwise motion or" the vibrator roll 52 at the same time that it is rotated.

The side brackets 57 and 57' which are adapted to support the auxiliary form roll and vibrator roll are substantially similar in construction and but one of them will be described in detail. Each of the brackets is provided with a forward depending portion 63 and the rear depending portion 64. The forward portion 63 is provided with an open slot 65 which is adapted to receive the shank of the headed stud 66 carried by the side rail 11 of the press. A set bolt or screw 67 is adapted to secure the rear depending projection 64 to the side rail. The side brackets are also provided with upwardly projecting extensions 69 at their rear ends which are adapted to be connected by the tie rod 70.

Horizontal guideways 72 are formed in the bracket 57 for the adjustable supplemental brackets 73 which are adapted to support the form roll. The vertical and horizontal adjustments of these brackets are fully illustrated and described in my above mentioned Patent No. 1,336,841 and therefore will not be described in detail herein. The brackets 73 are secured in adjusted horizontal position by manipulation of the knurled head 74 of the bolt 75. The axle 51 of the form roll is .ipported in a forked bearing 77 which is provided with a shank 78 adapted to be received within the cylindrical body portion oi the bracket 73. An adjusting knob 79 is provided at the lower end of this bracket by which the form roll bearings may be set in a predetermined vertically adiusted position. The above described adjusting meansA are illustrated in detail in Figures 7-11 of my prior Patent No. 1,336,841. Upon the forward edge oi the side bracket 57 there is formed the projection 89 which is adapted to abut a portion oil the frame oi the press as shown in Figure 1 to aid in positioning the bracket 57 for proper installation upon the press.

A pivot stud or pin 82 is secured in the rear portion of each of the brackets 57 and 57 as by means of the nuts 83 and is adapted to project inwardly therefrom. These pins 82 provide a common pivot means for the levers 85 and 86. The lever 85 hasa long arm 87 provided upon its tree end with a roller 88 supported as by means of the pin 39 and nut 90. The lever 85 is also provided with a short arm 91 which may extend generally upwardly from the pivot pin 82 and is provided with the stop portion 92 adapted to abut the tie rod 7o in order to maintain the opposite 87 in a substantially horizontal position when otherwise unsupported.

The lever 86 is provided at its free end with the upper horizontal surface 94 which is adapted to underlie a portion of the axle 51 ci the form roll as will be readily seen in Figure l of the drawings. intermediate its length, the lever 86 is provided with the lateral projection 95 which is adapted to overhang the longer arm 87 of the lever 85. Threaded through an opening 96 in this projection 95 is the set screw or bolt 97 which is adapted to be adjusted to regulate the relative positions of the levers 85 and 86 when the lower end of the bolt 97 is in contact with the lever arm 87.

As most clearly shown in Figures 3 and 4 of the drawings, upon oscillation of the bed the upper cam surfaces 21 of the press bearer members 20 are adapted to contact with the roller 88 carried by the lever 85 and to lift the lever arm 87 as the roller 88 moves relatively up the surface 2l. his upward movement of the lever 87 will bring it into contact with the lower end of the set bolt 97 and this will raise the lever 86 so that the surface 94 will contact with the axle 5l of the form roll and thus lift the form roll from contact with the form. As heretofore suggested, the point at which the form roll will be raised from the form may be predetermined by providing means for adjusting the position of the bearer member 20 longitudinally of the bed l5. It will be seen that the stop 92 carried by the short arm 91 of the lever 85 will abut the tie rod 70 when the lever arm 87 is not supported by the bearer member 20. By adjusting the set bolt 97 the distance through which the form roll will be raised by the lever 86 may be regulated.

For the purpose of increasing the efliciency of the oscillatory inker just described, by effecting a more tho-rough working and distribution of the ink, there may be provided the rider roll 170 which is adapted to bear upon the vibrator roll 52. as shown in Figure l of the drawings. The rider roll has been omitted from the other figures for the purpose of simplifying the disclosure and avoiding confusion.

The axle 171 of the rider roll is adapted to be Asa supported at each end in the brackets 172 which are pivotally carried by the tie rod 70. Each of these brackets 172 is provided with a boss 173 into which is threaded a set bolt 174 which is adapted toV bear against the tie rod to secure the bracket in adjusted positions. The other ends of the brackets 172 are formed with U- shaped bearings 175. Plates or clips 176 are adapted to cover the open tops of the bearings 175 to retain the axles 171 therein. These plates are secured by means of the screws 177 which are adapted to be threaded into openings 178 in the brackets 172 and which are also provided with shoulders 179 adapted to bear upon the plates when the screws 177 are applied. In Figure 6, there is illustrated a modiiication of the form roll lifting mechanism in which the axle 51 of the form roll 50 is provided with a roller o-r wheel 98 which is adapted to roll upon the cam surface 99 of the bearer member 100 which is adjustably secured to the margins of the bed bearers 101 by means of the pins or bolts 102 which are adapted to pass through the slots 103 in the bearer members 100. Of course, these bearer members 100 are adjusted so that the form roll 50 is lifted from the form as it passes over a marginal portion of the form so that the display portions of the form will not be streaked.

Figures 7-10, inclusive, illustrate a modified form of auxiliary inking mechanism as applied to another type of printing press. Part of the side framing of the press is illustrated at 11G and the side housing 111 projects upwardly therefrom and is adapted to enclose the ends or the impression 35' cylinder 112. For the purpose of supporting the auxiliary inking mechanism there is provided a bracket 113 which is secured to the housing 111 as by means of the bolts 114 and is fastened to the press side frame 110 by means of the bolt 115 -which passes through the flange 116 of the bracket. The horizontal reciprocating bed of the press is illustrated at 118 and is provided with the bed bearers 119 upon either side thereof. Secured to these bearers 119 are the supplemental bearer members 120, upon which are formed the cam surfaces 121, and which are adapted to perform the same function as the corresponding bearer members 20 and 100 of the embodiments already described.

A vibrator roll 125 is carried by an axle 126 which is supported in bearing members 127 upon either side of the press. The bearing member 127 on the opposite side of the press (not shown) is preferably provided with a reversing or vibrating nut such as is employed in the prior embodiments and illustrated in Fig. 11. The vibrator roll axle 126 is also provided with a gear 130 which is adapted to mesh with the gear 131 which in turn meshes with the gear 132 which is the iirst of a suitable series of gears provided for transmitting the oscillating movements from a suitable source such as the reciprocating bed of the press. The bearing brackets 127 are pivoted as at 133 concentrically with the gear 131 upon a projection 134 formed on the upper portion of the bracket 113. The bearing bracket 127 is further provided With a depending lug 135, the purpose of which will be later described.

The lower part of the bracket 113 is provided with spaced guide members 137 between which a vertically reciprocable slide member 138 is retained by means of the strips or bars 139. Near the upper end of the slide 138 there is secured a bracket arm 140 by any suitable means such as the screw 141. The slide 138 is adapted also to be embraced by the side arms 142 of the bracket 140. Upon the inner free end of the arm 140 there is provided the roller 145 which is adapted to contact with the bearer member or cam 120 carried by the bed of the press. Upon the outer surface of the slide 138 near the point of attachment of the bracket arm 140 there is secured a supporting bar or block 147, as by means of the screw 148 which may be selectively inserted in either of the holes 149 or 150. The means which have been illustrated for securing the slide 138, bracket arm 140 and supporting block 147 rigidly together are merely suggestive and any other suitable means within the scope of the invention may be provided in their stead. A pair of adjustable bearing brackets 152 and 153 are adapted to be carried by the supporting block 147 as by means of the jaws 154 and 155 and the bolts 156 which are adapted to be tightened by means of the knobs 157. These brackets 152 and 153 are of the same construction as the bracket 73 illustrated in the previously described embodiment and the brackets shown in my Patent No. 1,336,841, and are adapted to receive the Shanks 159 of the forked bearings 160 which are in turn adapted to receive the axles 161 of the form rolls 162. The Shanks 159 may be adjusted vertically by means of the knob 163 as in the examples referred to. The upper end of the slide 138 is adapted to be pivotally connected with the depending lug 135 of the Vibrator roll bearing bracket 127 by means of the removable pin 165.

The operation of the device will be readily perceived. As the slide 138 is lifted within its guides 137 by means of the contact of the roller 145 of the bracket arm 140 with the bearer member 120 carried by the reciprocating bed of the press, it will lift the two form rolls 162 Whose bearing brackets are carried by the block 147 which is in turn secured to the slide 138, and will also raise the vibrator roll 125 around the pivot point 133 of its supporting brackets 127 by means of the connections 135, 165. The lowermost position of the slide 138 may be predetermined by adjusting the bolt 167 which is adapted to space the lower end of the slide 138 from the press side frame 110. A lock nut 168 is designed to secure the bolt 167 in adjusted position.

As has been suggested with relation to the iirst two embodiments of the invention, the bearer members 120 may be adjustable longitudinally of the bed 118 so as to predetermine the point at which the form rolls are raised from contact with the form.

It is obvious that various other changes and modifications may be made in the embodiments herein illustrated without departing from the scope of the invention as defined by the following claims.

Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent is:

1. In a printing press which includes an impression cylinder, a supporting frame comprising housings for the ends of said cylinder, a reciproeating bed, primary inking mechanism disposed at one side of said impression cylinder, a rack carried by said bed, a gear rotatably mounted upon said frame and adapted to mesh with said rack, and a train of intermediate gears driven by said gear and adapted to drive said primary inking mechanism, in combination, a secondary inkvSi) isc

ing mechanism comprising an auxiliary vibrator roll and an auxiliary form roll disposed at the other side of said cylinder, a gear supporting bearing plate secured to the inside of one of said impression cylinder end housings, a second train of gears mounted upon said plate, being driven by said rack and adapted to drive said auxiliary vibrator roll.

2. In a printing press, provided with a reciprocating bed adapted to carry the form, in com ination, inking mechanism including a form roll adapted to operate upon a portion only of said form, and means for raising said form roll from contact with said form at a predetermined point during the travel of said bed, said raising means comprising a cam member carried by the bed, a lever piVota-lly mounted intermediate its ends on a relatively stationary portion of the press, one end of said lever adapted to be raised by said cam member at said predetermined point, a stop against which the other end of said lever is adapted to abut to maintain said first named end in position to be contacted by said cam member', another lever pivoted adjacent to said rst named lever and disposed beneath the axle of said form roll in a position to lift the same when raised about its pivot, an adjustable abutment carried by said second named lever and adapted to be contacted by said iirst named lever, whereby said second named lever and consequently said form roll may be raised a predetermined amount by said first named lever.

3. In a printing press which includes an impression cylinder, a supporting frame comprising housings for the ends of said cylinder, a reciprocating bed, a rack carried by said bed, an auxiliary inking mechanism including a form roll and a vibrator roll disposed at one side of said cylinder, a gear carried by said vibrator roll, a train of gears operatively connecting said vibrator roll gear with said rack for oscillatory rotation, each of the gears of said train being provided with stub shafts, and a relatively thin plate secured to the inner side of one oi said cylinder end housings and provided with perforations forming bearings for said shafts.

4. An auxiliary inking attachment for bed and cylinder printing presses including in combination, a pair of brackets detachably secured to opposite sides of the press frame next to the cylinder housings, a vibrator roll supported in said brackets for rotation about a fixed axis, a form roll supported by said brackets and disposed below said Vibrator roll and rotated by Contact therewith, and means to raise the form roll from the form against the resistance of the vibrator roll While the form is reversing.

WILLIAM M. KELLY. 

